21316095

素因数分解:

$3^3\times 5^1\times {\mathrm{157897}}^1$

素因数の和:157911

約数の個数: 16

約数和(自身を含む): 37895520

約数和(自身を除く): 16579425

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157897, 473691, 789485, 1421073, 2368455, 4263219, 7105365, 21316095]

約数ペア:

[(1, 21316095), (3, 7105365), (5, 4263219), (9, 2368455), (15, 1421073), (27, 789485), (45, 473691), (135, 157897)]